公开(公告)号：US20180294724A1

公开(公告)日：2018-10-11

申请号：US15854061

申请日：2017-12-26

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Syed Wasif MEHDI ,  Neil GIBSON ,  Antonio PRIEGO

IPC分类号： H02M3/158 ,  G05F1/62 ,  H02M1/08 ,  H02M3/137 ,  H02M3/338 ,  H03K17/16 ,  H02J1/10

CPC分类号： H02M3/1582 ,  G05F1/62 ,  H02J1/10 ,  H02M1/08 ,  H02M3/137 ,  H02M3/158 ,  H02M3/1588 ,  H02M3/338 ,  H02M2001/0032 ,  H03K17/164 ,  H03K17/166

摘要： A controller including a voltage synthesizer for a switching regulator includes a synthesizer input to be coupled to an input of the regulator. First and second replica switching transistors are connected at a first node. A resistor couples between the first node and a second node, and a capacitor couples between the second node and ground. A transconductance stage compares a voltage sampled onto the capacitor to the output voltage of the regulator and generates an output signal in response to the comparison. A first switch couples between first and second inputs of the transconductance stage. The first switch is turned on during each cycle of operation of the voltage synthesizer to reset the capacitor voltage to the output voltage of the regulator.

公开(公告)号：US20210159787A1

公开(公告)日：2021-05-27

申请号：US16694441

申请日：2019-11-25

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Neil GIBSON ,  Stefan HERZER

IPC分类号： H02M3/158

摘要： A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal.

公开(公告)号：US20190149093A1

公开(公告)日：2019-05-16

申请号：US15809421

申请日：2017-11-10

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Neil GIBSON

IPC分类号： H03F1/02 ,  H03F3/45

摘要： An amplifier includes an input stage. The input stage includes a differential pair and a load circuit. The differential pair includes a first transistor and a second transistor. The first transistor and the second transistor are configured to amplify a received differential signal. The load circuit connects the differential pair to a reference voltage. The load circuit is configured to vary in resistance in inverse proportion to the transconductance of the first transistor and the second transistor.

公开(公告)号：US20180294726A1

公开(公告)日：2018-10-11

申请号：US15853494

申请日：2017-12-22

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Antonio PRIEGO ,  Neil GIBSON ,  Syed Wasif MEHDI

IPC分类号： H02M3/158

CPC分类号： H02M3/1584 ,  H02M2001/0025 ,  H02M2001/0032 ,  H02M2003/1566 ,  H02M2003/1586

摘要： A multiphase power regulator includes a plurality of phases coupled in parallel to provide a load current as a combination of phase currents at an output voltage, each phase including at least one power transistor switched to provide a respective phase current based at least in part on a comparator output signal, and a current-sense low pass filter to sense the phase current. The regulator further includes a gm stage to generate the current set point voltage based at least in part on the output voltage, a comparator to compare a voltage from the current-sense low pass filters to the current set point voltage and a current set point adjustment circuit to provide an auxiliary control signal to decrease the current set point voltage responsive to a change in comparator output and then to increase the current set point voltage responsive to another change in comparator output.

公开(公告)号：US20220158554A1

公开(公告)日：2022-05-19

申请号：US16950660

申请日：2020-11-17

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Neil GIBSON ,  Stefan HERZER

IPC分类号： H02M3/158

摘要： In some examples, a circuit comprises a first field effect transistor (FET) having a first gate adapted to couple to a reference voltage source, a first source coupled to a first current source, and a first drain coupled to a second current source. The circuit comprises a second FET having a second gate coupled to the first drain, a second drain coupled to the first current source, and a second source coupled to a first resistor. The circuit comprises a third FET having a third gate adapted to couple to a feedback loop of a voltage converter, a third source coupled to a third current source, and a third drain coupled to a fourth current source. The circuit comprises a fourth FET having a fourth gate coupled to the third drain, a fourth drain coupled to the third current source, and a fourth source coupled to a second resistor.

公开(公告)号：US20210344272A1

公开(公告)日：2021-11-04

申请号：US17376549

申请日：2021-07-15

申请人： TEXAS INSTRUMENTS INCORPORATED

发明人： Neil GIBSON ,  Stefan HERZER

IPC分类号： H02M3/158

摘要： A voltage regulation circuit includes a switching output terminal, a high-side output transistor, a low-side output transistor, a high-side replica transistor, a low-side replica transistor, and a comparator circuit. The high-side output transistor is configured to drive the switching output terminal. The low-side output transistor is configured to drive the switching output terminal. The high-side replica transistor is coupled to the high-side output transistor. The low-side replica transistor is coupled to the high-side replica transistor and the low-side output transistor. The comparator circuit is coupled to the high-side replica transistor and the low-side replica transistor, and is configured to compare a signal received from both the high-side replica transistor and the low-side replica transistor to a ramp signal.